(-10+2)= -8 -8-1= -9 The answer is c
Answer:
?= 63.15789474%
Step-by-step explanation:
Use cross multiply
Set ?=x
45° 90° 180° 270° Just to name a few ☺
This is usually used as a proof that triangles have 180°. Look at the attached figures. If you cut off angle A, angle B and angle C and rotate them so that their vertices touch, you form a half-circle out of them (or a straight line). We know that half a circle is 1/2 of 360° or 180; therefore all 3 angles in a triangle must add up to 180°.
7 is the tens place. that is answer