24. Find the mystery numbers. Use the arrow way to explain how you know.

a. 10 more than 19 is 29.

b. 10 less than 19 is_a

tensones

tens ones

tensones

tens ones

c. 1 more than 19 is 2C.

d. 1 less than 19 is 1 2

tens ones

tens ones

tens ones

tens ones

according to the triangle sum theorem, all the angles in a triangle must add up to 180 degrees. if we know one angle is already 90, we do 180-90=90. the other 2 angles must add up to 90, exactly.

step-by-step explanation:

jml angle lkj & angle mj = lm

56 44 2 4

step-by-step explanation: