find bc if the area of triangle ABC is 48 cm² and the height is 4 cm
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Answer:
ANSWER
Areas of two similar triangles are 12cm
2
and 48cm
2
For similar triangles the ratio of areas is equal to the ratio of square of corresponding heights
Hence,
A
2
A
1
=
(h
2
)
2
(h
1
)
2
48
12
=
(h
2
)
2
(2.1)
2
(h
2
)
2
=4×(2.1)
2
h
2
=2×2.1
h
2
=4.2cm
Step-by-step explanation:
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