Question

in fig. 15.36, BD = 10 cm, AC = 12 cm and BC = 26 cm.
a) Find area of triangle ABC
b) calculate the height AE​

Answer 1

Answer:

first find the height by Pythagoras theorem,

AC2 =AE2+EC2

(12)2=AE2+(13)2

AE2=169-144

AE2=25CM

AE=√25=5CM

THEN FIND THE AREA BY

Step-by-step explanation:

1/2×BASE×HEIGHT

1/2×26×5=65cm2