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givi [52]
3 years ago
8

Help please thank you

Mathematics
1 answer:
LenaWriter [7]3 years ago
3 0

Answer:

B)60m^2

Step-by-step explanation:

The area of the rectangle is 40m^2 and the area of the triangle is 20m^2. So 40+20 is 60.

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Triangle QST is isosceles, and Line segment R T bisects AngleT. Triangle Q S T is cut by bisector R T. The lengths of sides S T
Katyanochek1 [597]

Answer:

m∠QRT = 90°

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Step-by-step explanation:

Triangle QST is isosceles with QT ≅ ST. In isoscels triangle QST, angles STR and RTQ are congruent.

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Angles QRT and SRT are supplementary (add up to 180°). Since these two angles are congruent, they have the same measure equal to \frac{1}{2}\cdot 180^{\circ}=90^{\circ}

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