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2 years ago

Help with 1 and 3 please........

Mathematics

1 answer:

77julia77 [94]2 years ago

5 0

Answer:

P = 9+9+14+14= 46cm

A = Base (14 cm) × Height (7cm)

14×7= 98 cm²

3. P= 1.2 +2.0 +1.6= 4.6m

A = 1/2 B×H

= 1/2 1.6× 1.2

= 0.96 m²

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3 years ago

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2 years ago

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see the explanation

Step-by-step explanation:

we know that

A shape with two opposite angles equal to 105° could be a quadrilateral, a parallelogram, a rhombus or a trapezoid

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A parallelogram: A Parallelogram is a flat shape with opposite sides parallel and equal in length. Opposite angles are congruent and consecutive angles are supplementary

If the parallelogram have two opposite angles equal to 105°, then the measure of each of the other two congruent interior angles must be equal to

$180^o-105^o=75^o$

A rhombus: A Rhombus is a flat shape with 4 equal straight sides. A rhombus looks like a diamond. All sides have equal length. Opposite sides are parallel. Opposite angles are congruent and consecutive angles are supplementary

If the Rhombus have two opposite angles equal to 105°, then the measure of each of the other two congruent interior angles must be equal to

$180^o-105^o=75^o$

A trapezoid: A trapezoid is a 4-sided flat shape with straight sides that has a pair of opposite sides parallel

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2 years ago