Download presentation

Presentation is loading. Please wait.

Published byReagan Muscott Modified over 2 years ago

1
Carpentry & Joinery Phase 4 Module 2 Unit 4 Geometry Right Angle Triangle c a b 90° Sample Questions & Solutions

2
Carpentry & Joinery Phase 4 Module 2 Unit 4Question Find the value of the angle A 100° 50° A

3
Carpentry & Joinery Phase 4 Module 2 Unit 4Answer 180 – (100 + 50) 180 - 150 30° = 30° 100° 50° A

4
Carpentry & Joinery Phase 4 Module 2 Unit 4Question Find the value of the angle E 80° 60° E

5
Carpentry & Joinery Phase 4 Module 2 Unit 4Answer 180 – (60 + 80) = 40 so 180 – 40 140° = 140° 80° 60° E

6
Carpentry & Joinery Phase 4 Module 2 Unit 4Question Find the value of the angles C + D if the 2 sides of the triangle are of equal length (isosceles) 50° C D

7
Carpentry & Joinery Phase 4 Module 2 Unit 4Answer 180 – 50 = 130 so 130 ÷ 2 (equal angles) 65° = 65° 50° C D

8
Carpentry & Joinery Phase 4 Module 2 Unit 4Question Find the size of the angles E,F and G if all sides of the triangle are equal in length G E F

9
Carpentry & Joinery Phase 4 Module 2 Unit 4Answer E = 60° F = 60° G = 60° as all angles in an equilateral triangle are = 60° G EF

10
Carpentry & Joinery Phase 4 Module 2 Unit 4Question In each of the following triangles, investigate whether or not the triangle is right-angled 14

11
Carpentry & Joinery Phase 4 Module 2 Unit 4Answer (a) 16² + 30² = 34² (Pythagoras Theorem a² + b² = c²) so 256 + 900 = 1,156 Yes, a 90° triangle so 1,156 = 1,156 i.e. Yes, a 90° triangle (b) 12² + 14² = 18² so 144 + 196 = 324 No, not a 90° triangle so 340 = 324 i.e. No, not a 90° triangle (c) 80² + 18² = 82² so 6,400 + 324 = 6,724 Yes, a 90° triangle so 6,724 = 6,724 i.e. Yes, a 90° triangle

Similar presentations

OK

TRIANGLES AND TYPES OF TRIANGLES. A triangle has three sides.

TRIANGLES AND TYPES OF TRIANGLES. A triangle has three sides.

© 2017 SlidePlayer.com Inc.

All rights reserved.

Ads by Google

Ppt on 2d viewing pipeline Ppt on pronouns for grade 3 Ppt on stock exchange of india Ppt on network switching tutorial Ppt on infosys company profile Ppt on web services testing Ppt on creativity and innovation management Ppt on metro bridge construction Php tutorial free download ppt on pollution Ppt on power grid failure 9-13-2015