In the given figure, abcd is a parallelogram .if m and n are any points on cd and da respectively. prove that triangle amb=triangle cdn +triangle anb

19.

step-by-step explanation:

you add the 9 in the tens column since it is a single digit and 9 plus zero is 9 so it is 19

c

step-by-step explanation:

answer for #1 is c

answer for #2 is d

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answer

d. 10

explanation

the distance from point y to wx is the height of the triangle.

using pythagoras theorem,

group similar terms to get,

this implies that,

take positive square root of both sides to get,

this implies that,