# Problem 424 - Method of Joints Checked by Method of Sections

# Problem 423 - Howe Roof Truss by Method of Sections

**Problem 423**

Use the method of sections to determine the force acting in members DF, EF, and EG of the Howe truss described in Problem 409.

# 14 - Area the goat can graze inside a right triangular lot

# Example 8 | Area bounded by arcs of quarter circles

# 04 Largest Right Triangle of Given Hypotenuse

# Two particles released from the same height and reached the base at the same time

**Problem**

Particles A and B are elevated 12 meters high from a given reference base. Particle A is projected down an incline of length 20 meters at the same time particle B is let to freely fall vertically. Find the velocity of projection of particle A if both particles strikes the base at the same time.

# Geometry-related Problems

**Example**

An isosceles triangle has an altitude equal to 12 inches and a perimeter equal to 36 inches. Find the length of the base and the length of the equal sides.

# 05 - Two runners moving in opposite directions in a circular track

**Problem**

Benjie and Jerwin is running in opposite directions in a 400-meter circular track and meet each other every 35 seconds. If Benjie can complete one track in 65 seconds. How long does it take for Jerwin to run 400 meters?

# 04 - Two runners moving in the same direction in an oval track

**Problem**

Runners A and B start together in a race around a 900-ft oval track. Runner A is making a speed of 27 ft/sec and runner B at 22.5 ft/sec. How long will it take runner A to be exactly one circumference ahead of runner B.