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Byju's Answer
Standard VIII
Mathematics
Triangles on the Same Base and Between the Same Parallels
In the given ...
Question
In the given figure, ABCD is a quadrilateral. A line through D, parallel to AC, meets BC produced in P. Prove that:
(i) Area (
□
ABCD) = Area (
△
PAB)
(ii) If the area of
△
DAC is 23 sq.cm, then what will be the area of
△
PAC ?
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Solution
(i) Here
△
DAC and
△
PAC are on the same base AC and between parallel lines AC and DP
Area (
△
DAC) = Area (
△
PAC)
Adding Area(
△
ACB) on both sides, we have,
Area (
△
DAC) + Area (
△
ACB) = Area(
△
PAC) + Area (
△
ACB)
Area (
□
ABCD)=Area(
△
APB)
(ii) Here
△
DAC and
△
PAC are on the same base AC and between parallel lines AC and DP
Area (
△
DAC) = Area (
△
PAC)
∴
Area (
△
PAC) = 23 sq.cm
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