Find x show workings - i will mark brainliest

x=140 Step-by-step explanation:

70 +70 =140

180-140=40

180-40=140

Step-by-step explanation:

Since we know that it is an isosceles triangle those to base angles are equal which mean 70°,70° now

we are left to find the upper angle let name it y

so to find

it will be

70°+70°+y=180°(angles in a triangle)

y+140=180

simplify

you will get y to be 40°

which means y=40°

now to find x

y+x=180°(angles on a straight line)

x+40°=180°

x=140°

answer

false

explanation

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