The area of a triangle ABC is 18 sq.cm. If the height AD on BC is 3 cm, find the length of side BC.
Answers
Answered by
1
Answer:
BC=12 cm
Step-by-step explanation:
According to the question,
1/2×length×height=18
→1/2×length×3=18
→3/2×length=18
→1.5×length=18
→length=18÷1.5
→length=12
So, length BC=12 cm.
Answered by
0
*Area of the triangle*
= 1/2 × b (base) × h(height)
= 18 cm² = 1/2 × BC (which is base) × 3cm
= BC = (18 × 2/3) cm
= 12cm
Hence , the length of the side BC = 12cm .
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