the area of a quadrilateral is 360 m² and perpendicular drawn to one of the diagonal from the opposite vertices are 10 M and 8 M find the length of the diagonal
Answers
Answer:
40m
Step-by-step explanation:
Here let us take ABCD as a quadrilateral with diagonal AC and the prependiculars
from the vertices as DQ and BP which are 8m and 10m respectively as shown in the attached file.
Now the area of a quadrilateral can be written as 1/2 * diagonal on which the prependiculars are * the sum of the prependiculars
therefore, the area of the quad. ABCD = 1/2*AC*(BP+DQ)
=1/2*AC*(10+8)=360 [GIVEN AREA OF
QUAD. = 360 m^2]
=1/2*AC*(18)=360
=AC*(9)=360
=> AC= 360/9 = 40
THEREFORE, AC= 40m Ans
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