Angles B and C of a AABC are 30° and 60° respectively. State
which of the following is/are 'True.'
(a) AB' + AC? = BC?
(b) AB' + BC = AC
(c) AC + BC = AB?
30°
60°
B
С
A
B
Answers
Answered by
0
Answer:


Use app
Login
Class 10
>>Maths
>>Triangles
>>Pythagoras Theorem and its Converse
>>In a right angled triangle ABC. B = 90
Question

In a right angled triangle ABC. ∠B=90o.
(i) If AB = 6 cm , BC= 8 cm, find AC.
(ii) If AC = 13 cm, BC= 5 cm. find AB.
Medium
Open in App
Solution

Verified by Toppr
i) In △ABC,∠B=90o
∴ By Pythagoras theorem,
AC2=AB2+BC2
AC2=62+82
∴AC2=36+64=100
∴AC=10cm
ii) In △ABC,∠B=90o
∴ By Pythagoras theorem,
AC2=AB2+BC2
132=AB2+52
∴AB2=169−25=144
∴AB=12cm
Attachments:
Similar questions