Question

c) The sum of two integers is 78. If one of them is (-40), Find the other.
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Answer 1

Answer:

For a quadrilateral, when one of its diagonal value and the sides are given, the area can be calculated by splitting the given quadrilateral into two triangles and use the Heron's formula. Example :A park, in the shape of a quadrilateral ABCD, has ∠C=90∘, AB = 9 cm, BC = 12 cm, CD = 5 cm and AD = 8 cm.

Step-by-step explanation:

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