Answer:
Step-by-step explanation: you can use a protractor if you have 1 or seeing as the bottom left is 65, the bottom right will be the same, mostly a guess but half 65 and try that.
Answer:
480 ft
Step-by-step explanation:
To find the width (x), apply the similarity theorem of two similar triangles, which says that the corresponding lengths of two similar triangles are proportional.
Thus:
x/72 = 80/12
Cross multiply
12 × x = 80 × 72
12x = 5,760
12x/12 = 5,760/12
x = 480
Width of the canyon = x = 480 ft
Answer:
FEJ and JED
Step-by-step explanation:
Both angles = 90°
So 90° + 90° = 180°
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Answer:
The three sides of isosceles triangle are DE = DF = 11 unit , and EF = 13 unit
Step-by-step explanation:
Given as :
DEF is a isosceles Triangle , with vertex D
The three sides is as
DE = x + 7
DF = 3x - 1
EF = 2x + 5
∵ DEF is an isosceles triangle then two of its sides must be equal
So , Let DE = DF
Or, x + 7 = 3x - 1
Or, 7 + 1 = 3x - x
Or, 8 = 2x
∴ x = 4
So, The measure three sides of isosceles Triangle are :
DE = x + 7 = 4 + 7 = 11 unit
DF = 3x - 1 = 3×(4) - 1 = 11 unit
EF = 2x + 5 = 2×(4) + 5 = 13 unit
Hence The three sides of isosceles triangle are DE = DF = 11 unit , and EF = 13 unit Answer
