1 If the sides of a triangle are 13 cm‚ 14 cm and 15 cm respectively then its area is ____cm2. A) 80 B) 82 C) 84 D) 88 View Solution Question 2 If the sides of a triangle are 150 cm‚ 120 cm and 200 cm‚ then its area is ____ cm2. A) B) C) D) View Solution Question 3 If two sides of a triangle are 8 cm‚ 11 cm and the perimeter is 32 cm‚ then its area is ____ cm2. A) B) C) D) View Solution Question 4 If two sides of triangle are 8 cm and 11 cm and
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Celsius = 10 x (depth) + 20 (Celsius temperature at depth in km) Farhrenheit = 1.8 x (Celsius) + 32 8. The Pythagorean Theorem states that the sum of the squares of the sides of a right triangle is equal to the square of the hypotenuse. For example‚ if two sides of a right triangle have lengths 3 and 4‚ then the hypotenuse must have a length of 5. The integers 3‚ 4‚ and 5 together form a Pythagorean triple. There is an infinite number of such triples. Given two positive integers‚
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Angle measurement The concept of angle The concept of angle is one of the most important concepts in geometry. The concepts of equality‚ sums‚ and differences of angles are important and used throughout geometry‚ but the subject of trigonometry is based on the measurement of angles. There are two commonly used units of measurement for angles. The more familiar unit of measurement is that of degrees. A circle is divided into 360 equal degrees‚ so that a right angle is 90°. For the time being
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= JK A is the midpoint of IK . Name: ________________________ ____ ID: A 9. Find the center of the circle that you can circumscribe about the triangle. a. 1 (− ‚ –4) 2 b. (–3‚ −2) c. 1 (− ‚ −2) 2 ____ 10. Where can the bisectors of the angles of an obtuse triangle intersect? I. inside the triangle II. on the triangle III. outside the triangle a. I only b. III only c. I or III only ____ 11. In ∆ACE‚ G is the centroid and BE = 12. Find BG and GE. a. b. BG = 4‚ GE = 8 BG = 3‚ GE = 9 c.
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Merriam-Webster‚ is ’the study of the properties of triangles and trigonometric functions and of their applications’. Trigonometry is one of the branches of mathematical and geometrical reasoning that studies triangles‚ particularly right triangles. Trigonometry uses the fact that the ratios of pairs of sides of triangles are functions of the angles. The basis for measuring triangles is the right-angled triangle. The term trigonometry means the measurement of triangles. Trigonometry is a branch of mathematics
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PST201F/101/3/2015 Tutorial letter 101/3/2015 MATHEMATICS AND MATHEMATICS TEACHING PST201F Semester 1 and 2 Department Mathematics Education IMPORTANT INFORMATION: This tutorial letter contains important information about your module. BAR CODE Learn without limits UNISA 2 CONTENT 1 INTRODUCTION .............................................................................................................................................. 3 2 PURPOSE OF AND OUTCOMES FOR THE MODULE ......
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4. If the base of an isosceles triangles are produced both ways‚ show that the exterior angles so formed are equal. 5. In the figure‚ AD= AE‚ BD= CE and ∠AEC=∠ADB. Prove that AB = AC. 6. In the figure‚ ΔABC and ΔDBC are both isosceles triangles. Prove that‚ ΔABD = ACD. 7. Show that the medians drawn from the extremities of the base of an isosceles triangle to the opposite sides are equal to one another. 8. Prove that the angles of an equilateral triangle are equal to one another. 10.2
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5C Problems involving triangles cQ1. The diagram shows a sector AOB of a circle of radius 15 cm and centre O. The angle at the centre of the circle is 115. Calculate (a) the area of the sector AOB. (b) the area of the shaded region. (226 ‚ 124 nQ2. Consider a triangle and two arcs of circles. The triangle ABC is a right-angled isosceles triangle‚ with AB = AC = 2. The point P is the midpoint of [BC]. The arc BDC is part of a circle with centre A
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Surface area of sphere = 4ʌU 2 1 2 ʌU h 3 Curved surface area of cone = ʌUO r l h r The Quadratic Equation The solutions of ax2 + bx + c = 0 where D0‚ are given by In any triangle ABC C b A Sine Rule a x= B c −b ± (b 2 − 4ac) 2a a b c = = sin A sin B sin C Cosine Rule a2 = b2 + c 2 – 2bc cos A Area of triangle = 2 1 ab
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Q: 6 Under which of the following conditions are you most likely to fall sick? (a) When you are taking examinations. (b) When you have travelled by bus and train for two days. (c) When your friend is suffering from measles. Why? Answer I will be most likely to fall sick when my friend is suffering from measles. This is because in this condition‚ I will visit my friend and will be likely to get infected with measles. Measeles is an infectious as well as an air-borne disease. When
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