In figure, triangle ABC is right-angled at B. Given that AB = 9cm, AC = 15cm
and D, E are the mid-points of the sides AB and AC respectively, calculate
area of triangle ADE
E
Answers
Answered by
9
Answer:
Given that AB=9 cm,AC=15 cm
BC=
AC
2
−AB
2
BC=
15
2
−9
2
BC=12cm
DE =
2
BC
=
2
12
=6cm
D is the mid point of the side AB
AD =
2
AB
=
2
9
=4.5cm
Areaof△ADE=
2
1
×AD×DE=
2
1
×4.5×6=13.5cm
2
Answered by
1
Step-by-step explanation:
by mid point theorem
AD=3cm
DE=6
therefore area of triangle ADE=1/2×3×6=9cm2
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