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2 years ago

A quadrilateral can have four obtuse angles. True False

1 answer:

4 0

The correct answer to this question is FALSE. A quadrilateral CAN NOT have four obtuse angles.<span>sum of all the interior angles in a quadrilateral is 360. i think you can think about the answer now with this in mind.
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All the internal angles of a quadrilateral sum to 360 degrees If all are obtuse that means every angle >90 so Sum of all is >360

That's not possible

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How can you represent the solutions of an inequality

natka813 [3]

A closed, or shaded, circle is used to represent the inequalities greater than or equal to (≥) or less than or equal to (≤) . The point is part of the solution. An open circle is used for greater than (>) or less than (<). The point is not part of the solution.

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2 years ago

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Mary is three times as old as her son. In 12 years Mary will be twice as old as her son. How old is each of them now? ANSWER QUI

BartSMP [9]

Mary is 36 and her son is 12

m=3s

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1. What is the solution for<br> the inequality 4x < 12?

DedPeter [7]

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4x < 12

Divide both sides by 4:

x < 12/4

x < 3

That is your solution ^^

Have A Nice Day ❤

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3 years ago

i will give brainliest to first correct answer!! what is the length of YZ? i will report if you give a fake answer

luda_lava [24]

Answer:

Step-by-step explanation:

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2 years ago

Altitudes AA1 and BB1 are drawn in acute △ABC. Prove that A1C·BC=B1C·AC

Sophie [7]

Answer:

See the attached figure which represents the problem.

As shown, AA₁ and BB₁ are the altitudes in acute △ABC.

△AA₁C is a right triangle at A₁

So, Cos x = adjacent/hypotenuse = A₁C/AC ⇒(1)

△BB₁C is a right triangle at B₁

So, Cos x = adjacent/hypotenuse = B₁C/BC ⇒(2)

From (1) and (2)

∴ A₁C/AC = B₁C/BC

using scissors method

∴ A₁C · BC = B₁C · AC

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2 years ago