Question

pls give correct answer with explanation
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Answer 1

Answer:

what is this i think that it is b is the answrr

Step-by-step explanation:

b is the answer

Answer 2

question 8

answer: option b 50°

AD is a median which is perpendicular

So, Angle ADB= 90°

angle ABD+ angle BDA+ angle DAB=180°

40°+ 90+angle DAB = 180°

130°+ angle DAB=180°

angle DAB=180°–130°

angle DAB= 50°

question 9

answer: option a 35 cm

formula for semi perimeter of triangle – a+b+c ÷ 2

= 21+20+29 ÷ 2

= 70÷2

= 35 cm

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