A solid figure where all faces are rectangles and all edges meet at right angles is called a rectangular ____.

Mathematics

2 answers:

kap26 [50]3 years ago

8 0

<h2>Answer: Prism</h2>

Step-by-step explanation: usatestprep approved

siniylev [52]3 years ago

7 0

The solid figure is a rectangular prism.

Step-by-step explanation:

A rectangular prism is a solid figure that has 12 faces. Each face is in the shape of a rectangle. It is also called a cuboid.
Along a length of a side, it has the same cross-section. This is what makes it a prism.
All its edges also meet at right angles or 90°.
Volume of a rectangular prism = length × width × height

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Proove that <br>1/1-sin theta + 1/1+cos theta = 2×sec square theta

Rina8888 [55]

Step-by-step explanation:

We need to prove that,

$\dfrac{1}{1-\sin\theta}+\dfrac{1}{1+\sin\theta}=2\times \sec^2\theta$

Taking LHS,

$\dfrac{1}{1-\sin\theta}+\dfrac{1}{1+\sin\theta}\\\\=\dfrac{(1+\sin\theta)+(1-\sin\theta)}{(1-\sin\theta)(1+\sin\theta)}\\\\=\dfrac{2}{1-\sin^2\theta}\\\\\text{As}\ 1-\sin^2\theta=\cos^2\theta\\\\=\dfrac{2}{\cos^2\theta}\\\\\text{As}\ \dfrac{1}{\cos^2\theta}=\sec^2\theta\\\\=2\sec^2\theta\\\\=RHS$