Question

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Answer 1

Answer:

3. a) <AcB=90°(angle in a semicircle is 90°)

b) AB²= AC²+ BC²

AB²=8²+6²

AB²=64+36

AB=√100

AB=10cm

4.a)<MLN= 90°

b)<LNM=<OLN(opposite angles of an isosceles triangle are equal)(as OL and ON are radius therefore it is isosceles triangle)

:. <LNM=34°

<LMN+<MLN+<LNM=180°(sumof angles of a triangle is 180°)

:. <LMN+34°+90°=180°

<LMN=180°-124°=56°