Question

las medidas están bien?​

Answer 1

x =?

7.

A.

90+36+x=180

126+x=180

x =180-126

x =. 54

B.

70+70+x =180

140+x=180

x = 180-140

x =40

C.

103+20+x=180

123+x =180

x =180-123

x = 57

D.

80+40+x =180

120 + x =180

x =180-120

x =60

8.

A.

85+65 +110 +x =360

260 +x =360

x =360 - 260

x = 100

B.

136+67+90 +x =360

203 +90 +x =360

293 +x =360

x = 360 - 293

x = 67

C.

120+80+70+x =360

270 +x =360

x = 360-270

x =90