Question

please anwer correctly the first 2 question in above pic
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Answer 1

1) AB is Diameter of circle

P is any point on circumference

=> ∠APB = 90°

in Δ ΑΡΒ

∠PAB+ ∠APB + ∠PBA = 180°

∠APB = 90°

∠PAB= 40° given

∠PBA = ?

∠PBA +90° + 40° = 180°

=> ∠PBA = 50°

2) cyclic quadilatend ⇒ opposite angles are supplemetary

⇒m∠A+m∠C=180°

⇒m∠A−m∠C=20°

⇒m∠A=160°

3) l=80cm,b=40cm,h=20cm

Therefore,

TSA = 2(lb+bh+hl)=2(80×40+40×20+80×20)=11200 cm²

LSA = 2(l+b)h=2(80+40)20=4800 cm²

hope it helps you

Answer 2

Answer:

your answer is in above attachment

hi di, talking to you after long time