IM just a little bit slow

x = 4

∠R = 71°

Step-by-step explanation:

COMPLEMENTARY ANGLES: TWO ANGLES WITH A SUM OF 90°.

To make this problem easier to solve, we can combine like terms.

Now, we can proceed.

First, subtract 26 from 26 and 90.

(cancels itself out).

Now, we are left with 16x = 64.

Lastly, we divide the number in front of the variable by the answer.

Therefore, the value of x is 4.

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Now that we have the value of x, we can use this value to replace the variable (x).

Therefore, the value of ∠R is 71°.

make sure you have version 2.50

try looking in the very back of the book : )

step-by-step explanation:

you can download it here

the answer is b.

64

step-by-step explanation:

c=2πr=2·π·8≈64