Question

Pls help me with 1,2 questions and write step wise answers with diagrams

Answer 1

Answer:

1. 41 cm

2. 70cm

Step-by-step explanation:

1. Two sides - 40cm, 9cm...Given

Longest side - Hypotenuse....Property of Triangle

Given triangle is a right angled triangle,therefore,

By Pythagoras Theorem,

(longest side) ^2= 40^2 + 9^2

${(hyp.)}^{2} = {(s1)}^{2} + {(s2)}^{2}$

= 1600 + 81

= 1681

longest side = root of 1681

Longest side = 41cm

2. Given triangle is right angled triangle, therefore,

By Pythagoras theorem,

${(hyp.)}^{2} = {(s1)}^{2} + {(s2)}^{2}$

hyp^2 = 20^2 + 21^2

= 400 + 441

= 841

hyp. = root of 841

hyp. = 29cm

Perimeter of triangle = 20 + 21 + 29

= 70cm