Question

triangle is isosceles with ab=ac =7.5 cm and bc = 9 cm the height ad from a

Answer 1

$4.5 \times 4.5 = 20.25$

$20.25 - 56.25$

$36.00$

$\sqrt{36 = = 6}$

therefore height AD is 6 cm

Answer 2

Answer:

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Step-by-step explanation:

Area of ∆ ABC = 1/2 × Base × Height

= 1/2 × BC × AD

= 1/2 × 9 × 6

= 27 cm²

Area of ∆ ABC = 1/2 × Base × Height

= 1/2 × AB × CE

27 cm² = 1/ 2 × 7. 5 × CE

CE = 7.2 CM