Answer:
18ft
Step-by-step explanation:
21-3=18
Answer
33
Step-by-step explanation:
11 of the faces is a square.
\begin{aligned} \text{Area of a square} &= \text{side} \cdot \text{side}\\\\ &= 3 \cdot 3\\\\ &= {\blueD{9}} \\\\ \end{aligned}
Area of a square
=side⋅side
=3⋅3
=9
Hint #22 / 4
444 of the faces are triangles. Each triangle has the same base and height.
\begin{aligned} \text{Area of a triangle} &= \dfrac12 \cdot \text{base} \cdot \text{height}\\\\ &= \dfrac12 \cdot 3 \cdot 4\\\\ &= 6 \\\\ \end{aligned}
Area of a triangle
=
2
1
⋅base⋅height
=
2
1
⋅3⋅4
=6
The total area of these 444 triangles is 4 \cdot 6 = \greenD{24}4⋅6=244, dot, 6, equals, start color #1fab54, 24, end color #1fab54.
Hint #33 / 4
Let's add the areas we found to find the surface area.
\begin{aligned} \text{Surface area} &= \blueD{9}+ \greenD{24}\\\\ &= 33\\\\ \end{aligned}
Surface area
=9+24
=33
Hint #44 / 4
The surface area of this square pyramid is 333333 units^2
2
squared.
Anna walks 1 mile in 18 minutes. 18 x 2.5 = 45. if she walks 3 miles instead of 2.5, your only adding half of 18. so 45 + 9. Anna will walk 3 miles in 54 minutes. Hope that helped!
The table displays the quantitative data, two teachers do not wear glasses, and a total of 6 teachers were polled. Then the correct option is A, C, and E.
<h3>What is decision-making?</h3>
The process of making choice is by identifying the correct decision, gathering information, and assessing alternative solutions.
The table is shown below.
Wear glasses Don't wear glasses Total
Student 32 97 129
Teacher 4 2 6
Total 36 99 135
The table displays the quantitative data.
Two teachers do not wear glasses.
A total of 6 teachers were polled.
More about the decision-making link is given below.
brainly.com/question/3369578
Acute because it's keys than 90 degreses
