Question

Answer all and no scam
Q1. (a) Find the complement angle of 70°.
(b) Find the supplement angle of 12°.
Q2. Two complementary angles are in the ratio 4 : 5.
Find the angles
Q3. Find x if l║m<br />Q7. ABC is right-angled at C. If AC = 5 cm and BC = 12 cm , find the length of AB.

And if you don't know the answer then don't reply​

Answer 1

Answer:

question 1

a) 20°

b) 178°

question 2

complementary angle = 90°

ratio =4:5

so, 4/5 = 4*10/5*10 = 40/50

and, 40 + 50 = 90

so the angles are 40° and 50°

sorry I don't know the answer of question 3.

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Answer 2

Answer:

Another ques have been answered by him so i would help you by giving Q7's answer that is 13 cm

Step-by-step explanation:

As, in right angled triangle ABC,

(AB) ²=(AC)²+(BC)²

(AB) ²=(5)²+(12)²

(AB) ²=169

AB=√169=13cm