Which of the following statements is true for ∠a and ∠b in the diagram? Question 6 options: A) m∠a + m∠b = 180° B) m∠a – m∠b = 90° C) m∠a = m∠b D) m∠a + m∠b = 90°

1. 22

2. 1

3. 7

4. 18

step-by-step explanation

e2020 got it right

there is no grid

step-by-step explanation:

the answer would be d

straight away you can eliminate a and c because not all books contain a scientific skill because some may be fiction. c is also wrong because it saids that the only way children can learn is through books which is incorrect.

b is also wrong because reading can be a scientific skill but not always, therefore it is wrong which leaves you with d, the correct answer since it said that it can children learn.

hope this ! : 3

the arc length is found by finding the circumference of the full circle (2xpixradius) and then dividing by 4 to find just one quarter of the circle (90 degrees).