Learn how to find the area of a oblique triangle

Learn how to find the area of a oblique triangle

Assessment

Interactive Video

Mathematics

9th - 10th Grade

Hard

Created by

Wayground Content

FREE Resource

The video tutorial covers solving a triangle problem by finding the area using given angles and sides. The teacher emphasizes the flexibility of formulas and the importance of not getting stuck on specific labels. The process involves calculating missing angles, using ratios to find missing sides, and ensuring accuracy in calculations by avoiding rounding errors. The tutorial provides practical tips for storing and using numbers in calculations.

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5 questions

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1.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the key takeaway about using formulas for triangle calculations?

Formulas must always use the same labels.

Formulas are flexible and labels can be changed.

Only specific formulas work for triangles.

Labels should be in alphabetical order.

2.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

How do you find the missing angle in a triangle if two angles are known?

Divide the sum of the two angles by 2.

Subtract the sum of the two angles from 180 degrees.

Multiply the two angles.

Add the two angles together.

3.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is necessary to use the Law of Sines effectively?

Only one known angle.

All sides must be equal.

A known ratio of sides and angles.

A complete set of angles.

4.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Why is it important to avoid rounding numbers too early in calculations?

Rounding is required for all calculations.

It is easier to remember rounded numbers.

It can lead to significant errors in the final result.

It makes calculations faster.

5.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is a recommended method to ensure precision when using a calculator?

Always round numbers to two decimal places.

Store intermediate results in the calculator.

Use only the first digit of each number.

Avoid using a calculator altogether.