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2 years ago

How to find the area of the triangle

Mathematics

2 answers:

KiRa [710]2 years ago

8 0

Hello from MrBillDoesMath!

Answer:

Discussion:

The diagram is a bit hard to read but I think the triangle has a base length of 4 and an altitude of 1 (gotten by counting dots). Then the area of the triangle is

= (1/2) bh

= (1/2) 4 * 1 =

Thank you,

MrB

user100 [1]2 years ago

5 0

Answer:height times width divided by two

Step-by-step explanation:

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What is the name of the geometric term that is described by three points that are not on the same line and has a flat surface th

katen-ka-za [31]

Answer:

D. plane

Step-by-step explanation:

A. is incorrect because three points don't make a point.

B. is incorrect because all points in a ray are colinear.

C. is incorrect because the three points are not colinear.

D. is correct because, for a given three different points, there is a plane that contains them.

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2 years ago

A piece of cardboard measures 10 ft by 10 ft. Four equal squares of size x are removed from the corners. After removing the squa

Gnesinka [82]

Answer:

The value of x would be $\frac{5}{3}$

Step-by-step explanation:

Given,

The dimension of the cardboard = 10 ft by 10 ft,

∵ After removing four equal squares of size x ( in ft ) from the corners,

The dimension of the resultant box would be,

Length = ( 10 - 2x ) ft,

Width = ( 10 - 2x ) ft,

Height = x ft,

The volume of box,

$V=(10-2x)\times (10 - 2x)\times x=x(10-2x)^2 = x(100 - 40x + 4x^2)=100x - 40x^2 + 4x^3$

Differentiating with respect to x,

$V'=100 - 80x + 12x^2$

Again differentiating with respect to x,

$V''=-80 + 24x$

For maxima or minima,

$V'=0$

$\implies 100 - 80x + 12x^2 = 0$

$\implies 3x^2 - 20x + 25=0$

By quadratic formula,

$x=\frac{20\pm \sqrt{20^2-4\times 3\times 25}}{6}$

$x=\frac{20\pm \sqrt{400 - 300}}{6}$

$x=\frac{20\pm \sqrt{100}}{6}$

$x=\frac{20\pm 10}{6}$

$\implies x = \frac{10}{6}=\frac{5}{3}\text{ or } x = 5$

For x = 5/3, V'' = negative,

While for x = 5, V'' = Positive,

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2 years ago

Arianna cycles for 3 hours at a speed of 40 mph. what distance did she travel

Phantasy [73]

40 × 3 = 120 miles

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2 years ago

Read 2 more answers

Whats the value of the 2 in 0.812 and write the underline digit as a fraction.

Snowcat [4.5K]

Answer:

the value of 2 in 0.812 is 2 thousandths/0.002

0.002 = 2/1000

0.812 = 812/1000

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2 years ago