Answer:

Step-by-step explanation:
![6[10] - 5 + 5[10] = 105 \\ \\ 60 - 5 + 50 = 105 \\ \\ 105 = 105](https://tex.z-dn.net/?f=6%5B10%5D%20-%205%20%2B%205%5B10%5D%20%3D%20105%20%5C%5C%20%20%5C%5C%2060%20-%205%20%2B%2050%20%3D%20105%20%5C%5C%20%20%5C%5C%20105%20%3D%20105)
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Answer:
338
Step-by-step explanation:
26 divided by 2 is 13. the width is 13. 26 times 13 is 338
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Answer:
the suface area is 9 for the one on the right and for the left 106821
Step-by-step explanation:
Answer:
a = 70°
b = 80°
Step-by-step explanation:
Angles on a straight line add up to 180°
⇒ a + 110 = 180
⇒ a = 180 - 110
⇒ a = 70°
The sum of the interior angles of a quadrilateral is 360°
⇒ a + b + 130 + 80 = 360
⇒ 70 + b + 130 + 80 = 360
⇒ b + 280 = 360
⇒ b = 360 - 280
⇒ b = 80°